Knotter.



H; D. CGLMAN.

KNOTTBR.

APPLICATION -FILED JULYZQ, 1907.

Patented Sept. 9, 1913.

3 SHEETS-SHEET l,

H. D. COLMAN.

KNOTTER.

APPLIGATION FILED JULY 29,1907. 1,072,575. Patented sept. 9, 1913.

3 lSHEETS-SHEET 2.

COLUMBIA PLANDGRAP-H cc., WASHINGTON. D. c4

H. D. GOLMAN. KNOTTER.

APPLICATION FILED JULY 29,1907.

1,072,575,r Patented Sept. 9, 191.3.

3 SHEETS-SHEET 3.

UNiTED sirnrns rn'rnnr onirica.

To HOWARD 1D.S oomvrniv, V'r. IJ-'T1i'n 'n.i..ivrinriiin, hiinrmnnx' A. snvEnsoN. dorniery NERs' DoINoBUsINEssAr nooKronD', ILLIJNoIs, As BARBER-coman COMPANY.

To all/whom' it may concern.' y

Beit known that I, HOWARD 'D1 CoLMAN,

a citizen of the United States, residingA- at Rockford, in the county of lVinnebago and State of Illinois, have invented certain newand useful Improvements in K-notters, of which the following is a specification.

One of the objects of this invention isto produce a knot-tying iliiechanisrn adapted tol tie lmots in worsted and other wiry yarns.

lVhen such yarns are` coiled or' looped byv tying bill. I find that a knot thus *formedV will not work loose or slide upon the threads.

The presen-t embodiment of my invention is adapted to be mounted upon the hand of the operator,- and issdesigned especially for use in textile" mills by the attendants uponv the spool-er frames. When a bobbin is emptied, the operative substitutes a ynew bobbin, stops the rotation of the correspondspool by layingherv nponf the top thereof, and with the otherhand places the end of they thread from-fthe" bobbin and the end of the thread from the spoolin proper relation t the knot-tying mechanism forl the tying or knot. Ineerta-nofthe knottying implements which I. have heretofore produced' the mechanism isfdigitallly actu#4 ated'. y i

It is one of the objects of the present invention to provide means' forfk actnaiting' the knot-tying' mechanism with'` power derived" from the machine tended by the user' of the implement.

In the devicefherein shown means isi provided for obtaining driying. engagement with the rotating spool next to; the; spool stoppedy by the operative' afs|` before` described. v i

The invention also relates tothe other ,im-l provenients in knottying mechanisms here p irrafter set forth.

In; the' accompanying'.drawings, Figaro i specineafion of Letters Patent.

Patented sept. o, 1913.

application ined rulyee, 1907'.l serial no. 385,956.

is a sideY viewV of one embodiment of my invention, illustrating the l implement as mounted upon the hand ofthe operative and sl'iowing the method of operation and the means for actuating the mechanism. Fig; 2 ls'i a partial side elevation of the implement -f i viewedv from the side opposite to that seen in Fig. 1. Fig. 3 is a fragmental forward lend view of the implement. Fig. 4 is a partial rear end View thereof.` Fig. 5 is a top plan view of the device. Fig. 6 is a detail View of the clamp arm. Fig. 7 is a detail view of the tying bill showing' the cam barrel in longitudinal central section. Fig. 8 is a transverse section through the tying bill and cam barrel taken on the plane of dotted line 8 8 of Fig. 7. Fig. 9 illustrates a means for stopping the mechanism at the end ofV each cycleof operation. Fig. 10 is' a liat development of the periphery of the actuating cam cylinder. Figs. 11 to 18 are views in series illustrating the knot-tying operation. Fig. 19 is a diagrammatic' view of thev knot tied: by' the' machine'.

In the embodiment selected' for illustration the mechanism is mounted upon a plate 1 to which a strap 2' is secured in any suit-l ablej manner, said strap being adapted to be buckled around the hand ofthe operator as tatably mounted, a shaft 7 bearing a Vsprocket wheel Y 8 and drive wheel 9'. Said drive wheel is so located with reference tothe strap 2 and the distance between the' spools u'ponthe' spooling frames in common use, as c to li-'e 1n position to contact the upper head of the spool n'exl-j tothe one stopped by the operati-ve when she is about toA tie` on the' 'thread 4from new bobbin. Preferably the Y driving wheel 9` or its peripheral portion consistsl of material V,adapted to provide good' driving Contact with ,theV spool, such. as rubyber or'leather.v A sprocket chain 10y extends over vthe sprocket wheels 5 and 8.

, The' forwardendof the shaft 4 is iiattened andV bent at substantially a right angle/to"r form` the portion 11 of the tying bill 12", 'af pivot 13` being ii-xe'df in' said portion. A portion 1l" of 4*the tying bill 12, commonly termed the bill spring, ris made removable for purposes of renewal.A It is secured to`VVV the shaft 4 by means of the sleeve .15... The movable jaw 16 of the tying bill is'pivotally mounted upon the pivotpin'13 and is pro-` vided with a cam wing 17 adapted, in the rotation of the tying bill, to engage the-interior walls of a cam barrel '18 vrigidly mounted in the supporting frame. -When the shaft 4 is rotated, the cam wing 17, en-

gaging the interior walls of the cam barrel. .18, is swung upon its pivot 13, 'thereby swinging the shearing and clampingjaw 16 and opening and closing the tyingrbill.

A stripper arm 19 having a hook`20 at its pivotally connected with one end of a clampV arm 26, the opposite end of which clamp arm has two upwardly-extending lingers 27 be-y tween which the stripper arm 19 is slidably mounted. The means herein shown for moving the stripper arm 19 and the clamp arm 26 comprises a cam cylinder 28 mountedk upon a shaft 29 in the supporting frame. A gear wheel 30 formed integralwith or otherwise suitably secured to the cam cylinder 28 meshes with a pinion 31 fixed upon the main shaft 4. In the cam cylinder 28 are formed two cam grooves 32 and 33. A roller 34 mounted upon the under side of the lever 24lies within the cam groove 33. A rock shaft 35 mounted in the supporting frame'has at its lower end an arm 36 provided with a roller 37 adapted to travel Yin the cam groove 32. Upon the upper end of the rock shaft 35 is an arm 38 connected with the stripper arm 19 by means of the link 39 (Fig. 5). The stripper arm 19 is arranged to 'swing upon the axis 21 from the position shown in Fig. 3 outwardly to theY position illustrated in `the perspective view Fig. 17.

A thread guide 40, hooked at its forward end, is slidably mounted in a guide-way 41 (Fig. 3) in the supporting frame, to slide in a direction substantially parallel with the.

axis of the tying bill. This movement is given it by means of the lever 24, one arm of said lever engaging in a notch 42 (Fig. 1) in the rear end of the thread guide 40.

` Means is provided for stopping the mechanism at the end of each complete cycle of operation, in order that the` tying bill, thread guide, stripper arm and clamp arm shall be in proper positio-nfor the nexty operation. Said means comprises a. pin43 (Fig. 9) fixedto the spur gear30 and a stud 44 fixed to a lever 45 pivotally mounted at 46 in the supporting frame.' A coiled spring 47 tends to move the stud-44 into thepath *the frame.

of the pin 43. The pivotal movement of the lever 45'in one direction is'limited by the impingement of a stop 48 upon the adjacent portionV ofthe supporting frame, andthe movement of said'lever in the opposite direction is limited by the end 49 (Fig. 3) of saidvk lever striking against the portion 50 of An arm 51 xed to the lever 45 extends into position to be moved by the thumb of the hand` upon which the implement is mounted, for lifting the stud 44 out of the path of the pin 43.

YWhen in use, the implement is mounted l upon :the left 'hand of the operative, as

shown in Fig. 1. Assuming the mechanism -to stand in theposition shown in Figs. 1 to 5, the operation -is as follows: /Vhen the Vthread running to any spool is exhausted,

the operative substitutes a new bobbin, stops the spool by laying her left hand upon the top thereof, the drive wheel 9 lying directly above the spool next to the left, and with her right hand draws the ends of the two threads across the stripper-arm 19, the tying bill 1 2 and the thread guide 40, as indicated in Figs. 1 Aand 11, the threads lying in the Vhooks of said stripper arm and thread guide, and directly behind the tying bill. Tilting the implement slightly to bringV the wheel 9 into driving contact with the spool below it, the operative releases the mechanism to action by raising the arm 51 with her thumb. The operation of the tying bill is substantially the same as that of the tying bill illustrated in Patent No. 755,110, issued to me on March 22, 1904, except that the tying bill of the present machine makes an additional revolution before the threads are received in the open bill. Referring to Fig. 11: As the tying bill turns toward the left into the position shown in Fig. 12 the bill is closed by the action of the cam barrel 18 on the cam wing 17 and the bill liesvacross the threads as shown in Fig. 12. The lirst three-fourths of a revolution of the tying bill from the initial position loops the threads about said bill, as shown in Fig. 13. During the next complete revolution of the bill, the threads are coiled upon themselves at one side Vof the loop upon the bill, the clamp arm advances to clamp the threads in the hook 20, and the thread guide 40 moves vima,stri Y aiid. thev clamp arm to the; ini-tial position,

clamp varm from the hook 20 releasing the united thread-ends. The. mechanism' is stoppedl in the` initial position by the engagement ofthe pin 113v with the stud 4&1, the gear 30 making one revolution to each completel cycle of movement.

The `operation may be summarized as fol ing bill, the threads are looped about said bill. During the second revolution the l threads are coiled upon themselves and the strands received in the open bill'. Duri-ng the third revolution the strands are shearedv drawn tight on the threads, and the ends threads upon themselves prior to their being drawn through the loop upon the tying bil-l prevents the coils of the knot from springing apart or sliding when tension is placed upon them as shown in Fig. 15. The second rev? olution pulls the ends through the loop on the tying bill and tightens and strips the knot, the third revolution occurring after the completion of the knot as shown in Figs. 16 and 17.

I realize that various embodiments of the invention are possible, and thereforeV would have it understood that I do not limit myself to the arrangement of parts and the details of construction herein shown and described.

I claim as my invention:

1. A knot-tying mechanism comprising a rotatable tying bill, means for opening and closing said tying bill, and means for moving the threads into the path of the o-pen tying bill.

A2. A knot-tying mechanism comprising a rotatable tying bill, means for rotating said bill through three revolutions, and means for moving the threads into the path of the i thread guide,- lever.

the threads. In order that the implement may be used for tying the ordinary spoolers side ofsaidbi'll, a thread guide at the opporanged to support threads in position for action thereon by the closed bill, and means for moving the second mentioned gui-deA 1 transversely of the planel of rotation ofthe?. .Y tying'bill ,to place-the threads in position for action thereonby the open bill. lows: During the first revolution of the tyt'tying bill, means forv rotating said tying lbill, a thread clamp comprising a clamp arm, a thread guide, and means for simultaneously moving said clamp arm and 'said' thread guide.

and clamped, the loops pulled off the bill and y tying' bill, vmeans for rotating said tying pulled out of the bill. The coiling of the arm, a thread guide, a lever connected at its 5. A knot-tying mechanism comprising a 6'. A knot-tying mechanism comprising a bill, a thread clamp comprising a clamp` opposite ends with said clamp arm and said and means for oscrllating said 7. A knot-tying mechanism comprising a main shaft, means for rotating said main shaft, a tying bill rotated by said main shaft, a thread clamp, and a cam and connections for actuating said thread clamp, said cam being driven by said main shaft.k

8. A knottying mechanism comprising a main shaft, means for rotating said shaft, a tying bill rotated by said shaft, a rotatably mounted cam cylinder, a gear connection between said cylinder and said shaft, and a thread clamp operatively connected with said cam cylinder.

9. A knot-tying mechanism comprising a main shaft, means for rotating said shaft, a tying bill, a stripper arm, a clamp arm, a cam cylinder driven by said shaft, and connections between said cam cylinder and said stripper arm and clamp arm for moving said arms.

10. A knot-tying mechanism comprising a main shaft, means fo-r rotating said shaft,

a tying bill and cooperating parts, andv means for stopping said tying bill at the end of its third revolution.

12. A knot-tying mechanism comprising means forY stopping the parts in the initial position, and a member adapted to be engaged by the operator for operating said stopping means. Y 13. A knot-tying mechanism comprising a tying bill and cooperating parts, and adjustable means for stopping the rotation VVVof said tying bill. y

v p closed, a stationary thread guide at'lone the withdrawal of the `fingers 27 of the ,g I

` site sideof said bill, said guides being' ar- Crt 14. .A knot-tying mechanism comprising members to engage the threads, a cam cylinder and connections for actuating said members, an adjust-able stop on said cylinder, and a coperating stop. l y Y V15. The combination of a knot-tying mechanism, means to support said mechanism,

Vsaidmeans being arranged to engage the hand of the operator, a drive wheel mounted on said supporting means in such position that when the hand supporting the mechanism is on one spool said wheel is in engagement with the next adjacent spool, and a driving` connection between said wheel and said mechanism.

16.*The combination, with a textile machine, of a strap for securing said machine to the hand of the operator; a driving wheel mounted on said strap; a sprocket Wheel 'iXed'with relation` to said ydriving wheel;

a sprocketV wheel connected to said machine; and a lchain running over said sprocket wheels.

17. The combination of a knot-tying mechanism, a strapto encircle the hand of the operator, said mechanism being attached to that portion of the strap which passes across the back of the hand, a drive wheel supported adjacent to said strap whereby when the operator lays his hand on a spool of a spoolerpframe said wheel will contact the neXt adjacent spool, and a driving connection between said wheel and' said mechanism.

c HOWARD D. COLMAN. Witnesses L. L. MILLER, LOUISE A. CULVER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. I 

